Solar salterns operate only for short dry periods of the year in the north shore of the Adriatic Sea because of its relatively humid and cold Mediterranean climate. In a previous paper, we showed that the NaCl precipitation ponds (crystallizers) of Northern Adriatic Secovlje salterns have different haloarchaeal populations from those typically found in dry and hot climates such as Southern Spain. To check whether there is a common pattern of haloarchaeal diversity in these less extreme conditions, diversity in crystallizers of other Adriatic solar salterns in Ston, Croatia was ascertained by molecular and culture methods. In addition, the cultivation approach was used to further describe haloarchaeal diversity in both salterns. Over the period of two solar salt collection seasons, isolates related to species of the genera Haloferax, Haloarcula, and Haloterrigena were recovered from both salterns. Within the same sampling effort, relatives of the genus Halorubrum and a Natrinema-like isolate were cultivated from Slovenian Secovlje salterns while Halobacterium related isolates were obtained from the Croatian Ston salterns. Concurrent with our previous findings, a library of Croatian saltern crystallizer PCR-amplified 16S rRNA genes was dominated by sequences related to the genus Halorubrum. The microbial community structure was similar in both salterns but diversity indices showed greater values in Slovenian salterns when compared with Croatian salterns.

The problem of calculating stoichiometric coefficients in a chemical equation can be solved by standard methods and the method of multidimensional vector space, but good knowledge of vector algebra is required. In this paper, the authors proposed a matrix method and other treatment of the problem was given as the authors' own interpretation. A matrix was formed in the form of base using all the elements which take place in a chemical reaction, after which the matrixes of all the chemical compounds were determined based on numerical indexes and element symbols. This approach enables the setting of a principal matrix equation based on a mathematical approach. The solutions of this matrix equation are the desired stoichiometric coefficients that form a balanced equation. A new approach to tabular solving is presented. This method, compared to existing standard methods, is faster, simpler, and more effective, especially for complex chemical equations. The method was tasted on examples from inorganic chemistry and metallurgy.

Sažetak. Prekomjemo propisivanje benzodiazepina je problem и mnogim zemljama, sto zahtijeva proširenje znanja i stavova о njihovom racionalnom propisivanju. U Domu zdravlja Banja Luka, tokom šest mjeseci, pomoéu upitnika ispitano je poznavanje benzodiazepina i način njihovog propisvanja među doktorima porodične medicine. Na pitanja iz upitnika odgovorio je i 981 pacijent. Rezultati su pokazali da je 341 pacijentu (34,76%) od ukupnog broja ispitanih, propisan benzodiazepin, uglavnom diazepam (252 pacijenata, 73,90%). Benzodiazepini su najčešće propisivani za nepsihijatrijske, organske bolesti i to za esencijalnu hipertenziju i druge kardiovaskularne bolesti (66,27%). Značajan broj pacijenata je benzodiazepin uzimao prema potrebi, duže od godine (69,79%) Hi nekoliko mjeseci (26,39%). Većina pacijenata nije poznavala moguća neželjena dejstva benzodiazepina (87,68%). Postoji neracionalano propisivanje benzodiazepina kod organskih bolesti, naročito kod kardiovaskulranih bolesti, tako da je neophodno uticati na propisivačke navike doktora, radi njihovog racionalnog propisivanja.

» Sažetak. Pol, godine života, pušenje, arterijska hipertenzija, dijabetes melitus, dislipidemija i gojaznost su faktori rizika za nastanak kardioyaskularnih (KV) bolesti. Neki od njih su promjenljivi, а na neke se ne može uticati. Cilj rada je bio da se utvrdi prevalenca pojedinih faktora rizika kod osoba sa visokim rizikom za nastanak fatalnih KV dogadaja. Ispitanici su birani metodom slučajnog izbora, a na osnovu procjene KV rizika podijeljeni su и grupu sa visokim i grupu sa niskim rizikom za nastanak fatalnog KV dogadaja. Od pojedinih faktor rizika najzastupljeniji je bio povišena vrijednost ukupnog holesterola (90,48%), zatim LDL holesterola (80,95%), a zatim arterijska hipertenzija (76,19%). Neophodno je da se faktori rizika za KV bolesti kontinuirano prate i da se njihovom modifikacijom radi na prevenciji fatalnih KV dogadaja. Kod osoba sa manifestnom KV bolešću trebalo bi spriječiti napredovanje i récidivé bolesti, a kod asimptomatskih bi trebalo otkrivati faktore rizika i vršiti procjenu KV rizika i time spriječiti nastanak manifestnog oboljenja.